Brick-kiln



(No Model.) 2 Sheets-Sheet 1. J'. CONLEY 8v J. M. WOLFE.

BRICK KILN.

aww/whoa Hmm? yPatented June 28- Jnoag ma mams vereis ca, maro-umu.,wAsnmumN, u, c.

(No Model.) zsheets-sheet 2.A

J..GO*N'LBY & J. M. WOLF-B.. BRIGK KILN.

No. 477,994P Patented June 28. 1892.

UNITED STATESl PATENT OFFICE.

JOSEPH CONLEY-AND JAMES M. I/VOLFE, OF TARKIO, MISSOURI.

BRICK-KILN.

SPECIFICATION forming part of Letters Patent No. 477,994, dated June 28,1892. Application filed March 12, 1892. Serial No. 4241715. (No model.)

To all whom it may concern:

Be it known that we, JOSEPH CONLEY and JAMES M. WOLFE, citizens of theUnited States of America, residing at Tarkio, in the county of Atchisonand State of Missouri, have invented certain new and usefulImprovementsin Circular Brick-Kilus; and we do hereby declare thefollowing to be a full, clear, and

exact description of the invention, such as will enable others skilledin the artto which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to letters of referencemarked thereon, which form a part of this speciiication.

This invention relates to improvements in circular brick-burningfurnaces, the object thereof being to provide a circular kiln, whichconsists of several chambers or sections which can be connected witheach other and with a central chimney, so that each Vsection can beconnected to a common furnace for heating or water-smoking the bricks,after which the bricks are burned by fuel fed in through the top of thekiln into passage-ways made by stacking the bricks within the kiln, thesaid passage-ways communicating with nues having dampers, by means ofwhich air may be fed to the fuel, the top of the kiln adjoining thepassage-way supporting pots with covers for closing said passage-ways,as will be hereinafter fully set forth, and particularly pointed out inthe claims.

In the accompanying drawings, formin g part of this specification,Figure 1 is a plan view taken below the ground -level of the kiln. Fig.2 is a vertical section on the line f f of Fig. l.

A designates a central chimney, which is connected by a series of fluesto an annular space B, in which the bricks to be burned are placed, thisspace being adapted to be divided into sections by temporary verticalpaper partitions,which extend from the base to the top, being connectedto boards at the base, the board portions of said partitions beingremovable through the doorways or openings b. There are two or more ofthese doors in the outer permanent wall a of the kiln and four in theinner permanent Wall a near the center of the kiln.

C designates a .furnace having grate-bars and ash-pits, which are formedwithin the permanent wall a of the kiln, which at this point isincreased in thickness, said furnace being used `in starting the liresand igniting the fuel, which is fed through pots placed on the top ofthe kiln and which communicate with passage-ways formed by properlystacking the' bricks, said passage-Ways leading to air-supply ducts, aswill be hereinafter fully set forth.

It Will be observed that When the fire is started in the furnace() itcan be confined to the first section of the kiln or to any succeedingsection by properly manipulating the dampers above the underground iluesand by the withdrawal of the boards c, through the doors b, formed inthe outer wall. f f designate transverse fines, which extend from theouter wall 'to the chimney, said fiues communicating with the sections Bof the kiln through apertures in the floor covered by dampers, saiddampers being operated either from the space at the center of the kilnor from the exterior thereof.

g designates a circular Hue, which is provided With damper-openings, andfrom this iue radiate short flues h, provided with dampers, whilebetween the same are located fines z', which extend fromv the outer walla to the inner wall a', said ilues also having dampers operated eitherWithin or Without the kiln. Flues f to be used also as cold-air iluesare provided having openings through the outer wall and dampers K. Theopening through' which cold air is admitted to flue fis designated bythe letter n. The inner Wall a is extended at a point opposite thefurnace C, so as to provide a shortz flue d', which communicates withthe flue fand is used in starting the fires.

In practice the bricks are stacked in the compartments B and the paperVpartitions properly placed. The lire is then started and after thebricks in the first section of the kiln are sufficiently7 heated fuel isfed through the pots to the apertures formed by the bricks in stackingthe same, and the fuel is ignited by the furnace. As the bricks arestacked to form ledges, the fuel, which is preferably slack coal, willcatch ou said ledges and distribute the heat, the air-supply beingthrough one set of flues and down the other flues to the chimney.

If at any time there is too much fire in any section and the burning ofthe bricks is progressing too rapidly, cold ai r may be admitted throughthe fines f by closing the dampers K and openings doors n. After 011esection of bricks has been burned the board e at the bottom of thepartition is removed and the bricks in the next section water-smoked andburned in a similar manner. It will be noted that the fuel used forburning the bricks in the first section of the kiln is utilized to agreat extent in heating the bricks in the adjacent section, thusutilizing the full effect of the fuel and providing a means forcontinuously burning bricks, the cold-air dues providing means forcooling the bricks after being burned.

The kiln is provided wit-h a wall E, which is a temporary wall to betaken out as soon as the fire has been advanced from the place ofstarting and the burned bricks are sufficiently cooled to be removed.Hence we never have to start the fire at the furnace but once, as wekeep building in new material at least two or three sections in advanceof the j bination of the inner and outer walls a and a', fines havingdampers communicating with fire, thus completing the circuit of kiln asoften as desirable without again starting the fires from the furnace. Ina kiln thus constructed the bricks at the bottom, which have to sustainthe greatest pressure, are iirst burned.

We are aware that prior to our invention it has been proposed to providea brick orpottery kiln with underground ilues; but such iiues areusually provided with independent furnaces and entire bottom of kilnperforated; and we do not claim, broadly, the providing of abrick-kilnwith undeigroundl flues through which the products of combustion fromthe furnace pass to a central chimney; but

What we do claim as new, and desire to se-A cure by Letters Patent, is

1. In a 'circular kiln for burning bricks, the combination of the outerand inner circular Vand for the purpose set forth.

walls and acentral chimney, said walls having doorways through whichaccess can be had to the space between the inner and outer walls, saidspace being connected by fines with the central chimney, substantiallyas shown, and for the purpose set forth.

2. The combination, in a circular kiln, of the inner and outer walls aand a', a central vchimney A, connected with the space between the innerand outer walls by fines having dampers s, and a single furnace C,substantially as shown, and for the purpose set 3. In a brick-burningfurnace or kiln, the combination of the inner and outer'walls a and a',having doorways through the saine,

viiues with apertures and dampers above the gsame, a furnace C,communicating with the .space B, in which the bricks are placed to beburned, and a temporary partition-wall E, adjacent to the furnace,extending from the outer to the inner Wall, substantially as shown,

4. In a furnace for burning brick, the comthe central chimney and with aspace B, in

which the bricks to be burned are placed, fines f, extending through theWalls a, and a' and provided with apertures and dampers forcommunicating with the compartment B, a temporary partition-wallgEbetween the walls a and a and adjacent to the furnace C, and means,substantially as set forth, for dividing .the space B into separatecompartments, for

the purpose set forth.

In testimony whereof we affix our signatures i, in presence of twowitnesses.

JOSEPH CONLY. JAMES M. WOLFE. Vitnesses:

JOHN A. GERLAsH, TENNIE E. HAINEs.

